. Goldfish breeds and other aquarium fishes, their care and propagation : a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with the text. , thrives in the aquarium and is one of its mostinteresting inmates. It is not as tenacious of life as the first two named,but is prolific and reaches a maximum length of 1 Y//2 inches. Its eggs aredeposited in long vermiform gelatinous masses on the stems and underthe floating leaves of plants and on the glass of aquaria; which hatch in12 to 20 days, the tiny snails being almost invisib
. Goldfish breeds and other aquarium fishes, their care and propagation : a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with the text. , thrives in the aquarium and is one of its mostinteresting inmates. It is not as tenacious of life as the first two named,but is prolific and reaches a maximum length of 1 Y//2 inches. Its eggs aredeposited in long vermiform gelatinous masses on the stems and underthe floating leaves of plants and on the glass of aquaria; which hatch in12 to 20 days, the tiny snails being almost invisible in their transparentshells. This snail is exotic but is extensively bred in the Eastern andMiddle States; may sometimes be had of dealers, but is usually obtained by exchange or purchase amongaquarium fanciers. V. ma/Ieatus, the Japanesesnail, Fig. 179, has now becomenaturalized at San Jose, Califor-nia, in a little valley at the footof Mount Hamilton. It is anediblesnail,known to the Chineseas Tsen law, which was eitherplanted or accidentally intro-duced by the Chinese and FIG. 179. Japanese snail. Vi-viparus malleatus. r . Nearly adult and younger shell, showing keel. Japanese of the 238 MOLLUSCS, VERMES AND HYDROZOA They are for sale in the Oriental quarters of some of the Pacificcities, and are collected in the rice fields near Yokahama and there soldfor a few cents a quart. They are ovoviviparous, very hardy, most tenaciousof life, and when not buried under the pebbles, the most indefatiguousworkers of any of the snails bred as aquarium scavengers. In theauthors vicinity they may be had of several breeders who have given thempreference to the other three desirable species. The shell is similar toV. viviparus but darker in color, lacking the bright color bands, and hasa distinct keel in the centre of the body whorl, extending part-way on thenext following. They grow to a diameter of i inches and over, and theiralmost entirely black color makes them conspic
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectaquariu, bookyear1908
